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introduction：At present，CTPThe field is still thermal sensitive and purple laser technology coexist。however，Violet laserCTPThe development is more dramatic。More and more enterprises began to invest in the research of this technology，Because they think，The future printing equipment market will be dominated by Purple LaserCTPtechnology-led。 Violet laserCTPTechnological advantage Ever since2000years5After the purple laser light source was officially introduced to the market in October，Always thought soCTPThe most advanced thermal light source in the equipment is severely challenged。The advantages of this new light source，Attracted a large number of users。 faster Violet light source relative to other commonly usedC
2015-01-11 Reading quantity 2840
introduction：five、Carbon steel and ferroalloy surface treatment methods [method1] Common degreasing solvent：trichloroethylene、acetone、Ethyl acetate、gasoline、benzene、Anhydrous ethanol。 [method2] Degreasing after sandblasting or emery cloth grinding。 [method3] in10%Water glass in aqueous solution60°CBottom retting10-15min，Then wash，desiccation。 [method4] in18%Macerate in aqueous hydrochloric acid at room temperature5-10min，Rinse with cold water，Rinse with distilled water，coexistence93
2015-01-11 Reading quantity 2909
introduction：In order to fit The products that should be manufactured by technology are increasingly diverse、Higher production efficiency and environmental requirements，High-speed cutting has followed、Dry cutting and other new processing technology。High speed cutting technology significantly reduces the cutting time during machining，This is the result of using new tool materials and coatings。On this basis，The potential to increase productivity by further improving cutting parameters is limited。 Another way to increase productivity is to minimize support time。First of all，The process method of breaking down complex parts into many processes and using many tools accounts for a lot of tool change time and pre-process
2015-01-11 Reading quantity 2926
introduction：InstallIKOBearings should be as dry as possible、Do it in a dust-free room，And should be away from metal processing or other will produce metal dust and dust equipment。Bearings must be installed in an unprotected environment[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]when（This is often the case with larger bearings），Appropriate measures must be taken to protect bearings and phases
2015-01-11 Reading quantity 1591
introduction： 1. Timken bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Size of load、Direction and nature[The load capacity of the bearing is expressed by the basic rated load，The values are given in the bearing size table]Bearing loads vary widely，Such as the size of the load、
2015-01-11 Reading quantity 1496
introduction：European Union（Through their respective governmentsEUREKE project）in1998 and2000 Supported by"Paperless mold design and manufacturing"This research and development project。This paper describes the work and results of this project。Further research in this field－Further expand the projects focus on results，In particular, it is widely used in mold design and manufacturingInternet-based（internet-based）Tools and methods，It is currently being developed by another European project－e_mould proceed。 item Project purpose： · Study the entire life cycle of mold design and manufacturing
2015-01-11 Reading quantity 2849
introduction：Defect name Defect expression cause Elimination and prevention methods Mechanical properties are not qualified Annealed conditionδ5low，The strength and elongation after quenching or aging treatment are not up to standard。 Low annealing temperature or insufficient holding time，Or cool too fast；Low quenching temperature or insufficient holding time，Or the cooling speed is too slow（The quenching medium temperature is too high）；The temperature of incomplete artificial aging and complete artificial aging is high，Or holding time is too long，The chemical composition of the alloy is deviated。 reannealing，Increase the temperature or extend the holding time；Increase quenching temperature or extend holding time，Reduce the quenching medium temperature；requench，the
2015-01-11 Reading quantity 1616
introduction：Principle of casting method selection：1．Preferred sand casting according to statistics，Chinese or international，In total casting production，60～70％The castings are made of sand，And among them70％Left and right are made of clay sand。The main reason is that sand casting costs less than other casting methods、Simple production process、Short production cycle。So its like the engine block of a car、Cylinder head、Crankshaft and other castings are produced by the clay wet sand process。When the wet type can not meet the requirements, then consider using clay sand table dry sand type、Dry sand type or other sand type。Clay wet sand casting casting
2015-01-11 Reading quantity 2911
introduction： Maintain the bearing well[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]It is a necessary condition for bearing operation，The common maintenance is for the lubrication of bearings，How to choose the lubrication method of bearings in Reading，Under the premise of understanding the lubrication method of bearings，It is also necessary to understand the maintenance of bearing systems
2015-01-11 Reading quantity 1594
introduction： Electric forklift usually need to pay attention to matters 1、Adjustment operation。The adjustment operation is an important work to restore the good technical performance of the forklift and ensure the normal fit clearance。The quality of adjustment work directly affects the economy and reliability of electric forklift。The adjustment operation must be carried out in a timely manner according to the actual situation。 2、Cleaning operation。Cleaning operation is to improve the quality of vehicle maintenance，Reduce wear and tear of parts and reduce oil and material consumption，And can be checked、fastening、Prepare for lubrication and adjustment operations。 qing
2015-01-11 Reading quantity 2829
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